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Finding the Fourth Proportional to 104,616.40, 156,924.60 and 73,123.60

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Solution

The fourth proportional to 104,616.40, 156,924.60 and 73,123.60 is: 109,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,616.40 : 156,924.60 = 73,123.60 : x
  2. Step 2: Convert to fraction form
    104,616.40/156,924.60 = 73,123.60/x
  3. Step 3: Cross multiply
    104,616.40x = 156,924.60 × 73,123.60
  4. Step 4: Simplify right side
    104,616.40x = 11,474,891,680.56
  5. Step 5: Solve for x
    x = 11,474,891,680.56/104,616.40
  6. Step 6: Final answer
    x = 109,685.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.